Ключевые слова: alternative, background, bank, banking, blockchain, cash, copy, cryptocurrency, cryptography, currency, decentralized, decline, decrease, digital, economy, electronic, exchange, exposed, fall, finance, financial, flop, future, idea, image, litecoin, logo, market, metal, mining, mirror, money, overrated, pay, payment, possibilities, reflected, reflection, risk, security, security problem, size, symbol, tech, technology, trade, trouble, unsafe, virtual, white,